/*
 * Copyright (c) 2011, Yawning <yawninglol at gmail.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   * Neither the name of the Mew Developers nor the
 *     names of its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

package yawning.mew.sim;

import java.util.ArrayList;
import java.util.List;

import yawning.mew.character.CharacterModel;
import yawning.mew.character.CharacterModel.AttackResult;

public class SimulationEventTargetMagic extends SimulationEvent {
	private CharacterModel mCharacterModel;
	private double mTargetMagicInterval;
	private int mTargetMagicDamage;
	private boolean mTargetMagicForceStopped;
	private double mPauseTime;

	private List <TargetMagicCallback> mTargetMagicCallbacks;

	public interface TargetMagicCallback {
		public void onTargetMagic(AttackResult result, int baseDamage, int Actualdamage);
	}

	public SimulationEventTargetMagic(SimulationEngine su, SimulationTarget target) {
		super(su);

		mTargetMagicCallbacks = new ArrayList<TargetMagicCallback>();

		mTargetMagicInterval = target.getTarget().getMagicInterval();
		mTargetMagicDamage = target.getTarget().getMagicDamage();

		// Start the mob magic damage timer.
		if (mTargetMagicInterval > 0 && mTargetMagicDamage > 0) {
			schedule(Double.MAX_VALUE, mTargetMagicInterval);
		}
	}

	@Override
	public void onTick() {
		AttackResult result = mCharacterModel.getMobMagicResult();

		int baseDamage = mTargetMagicDamage;

		if (result == AttackResult.CRIT) baseDamage *= 2;

		double damage = baseDamage;

		double mult = 1.0;
		// XXX: Handle resistances here.
		mult *= mCharacterModel.getIncMagicDamageMult();	// Damage reduction buffs/debuffs/talents.

		damage *= mult;

		for (TargetMagicCallback callback : mTargetMagicCallbacks) {
			callback.onTargetMagic(result, baseDamage, (int) Math.round(damage));
		}

		setTickInterval(mTargetMagicInterval);
	}

	public void addTargetMagicCallback(TargetMagicCallback callback) {
		mTargetMagicCallbacks.add(callback);
	}

	public void setCharacterModel(CharacterModel model) {
		mCharacterModel = model;
	}

	public void start() {
		if (!isUp() && !mTargetMagicForceStopped) {
			if (mPauseTime < 0) onTick();
			schedule(Double.MAX_VALUE, (mPauseTime > 0) ? mPauseTime : mTargetMagicInterval);
			mPauseTime = 0;
		}
	}

	public void stop() {
		cancel();
	}

	public void pause() {
		if (isUp()) {
			mPauseTime = getNextTickTime() - mSimEngine.getSimTime();
			if (mPauseTime == 0) {
				// Ugh, we got paused right as we were schedule to go off.
				mPauseTime = -1;
			}
			cancel();
		}
	}

	public double getInterval() {
		return mTargetMagicInterval;
	}

	public int getBaseDamage() {
		return mTargetMagicDamage;
	}

	public void setInterval(double interval) {
		mTargetMagicInterval = interval;
	}

	public void setBaseDamage(int damage) {
		mTargetMagicDamage = damage;
	}

	public void setEnable(boolean enabled) {
		mTargetMagicForceStopped = !enabled;
		if (enabled) start(); else stop();
	}
}
